Hardware

Cracking Open the IBM PC Jr.

CPU

The IBM PC Jr. uses the Intel P8088 (red arrow) CPU, which was a very common CPU at the time. The yellow arrow marks a Programmable Interrupt Controller.

About

Mark W. Kaelin has been writing and editing stories about the IT industry, gadgets, finance, accounting, and tech-life for more than 25 years. Most recently, he has been a regular contributor to BreakingModern.com, aNewDomain.net, and TechRepublic.